Answer: the answers are 1. They are vestigial structures that once performed... 2. imprints of leaves or footprints... 3. homo erectus... 4. the early stages of embryo... 5. a close evolutionary connection between humans and many other mammals
Explanation: 100% correct as of april 2022
Human embryo have many characters that disappear during their growth. Tail bone is vestigial in humans, they have hair and produce milk indicates that these are mammal.
What is mammal?Mammals are the animals that have some unique feature like giving birth to young once, have mammary gland, having body hair, etc.
The appearance of tail in mammals just like fish, amphibians shows evolution.
Humans have hair and mammary gland which produce milk to nourish the young means they belongs to mammals.
Thus, all these characteristics shows the evidences of evolution.
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What are the three main functions of the cardiovascular system?.
Answer:
transport of oxygen, carbon dioxide and nutrients
clotting of open wounds
regulation of body temperature
Explanation:
Paleomagnetism suggest the earth acts as a giant magnet
O True
False
Answer:
True
Explanation:
Gravity pulls everything in
Which of these glands produce a hormone that stimulates cells in the immune system?.
Answer:
Adrenal glands
2. A hypothesis is an educated guess based upon observation. It is an explanation of a single event based upon what is observed. A hypothesis has not been proved but can be supported by experimentation.
a) Suppose that out of 10 trees planted in a yard, only five survived. What kind of hypothesis could you make about this observation or event? Remember that a hypothesis needs to have a certain format. (2 points)
b) How could you test this hypothesis? What type of experiment could you perform? (2 points)
c) How would this hypothesis be different from a scientific law? Review the definitions of law and hypothesis to help you. (2 points)
A law is backed by scientific evidence which is reproducible while a hypothesis is just a guess that may be confirmed or disproved by experiment.
What is a hypothesis?A hypothesis is a guess that is based on enormous background information. If only five trees survived, it is possible that they received more light than the other 5.
In that case, I will design an experiment in which the same kind of plant is randomly assigned to different treatment groups that receive varying degrees of light and the rate of growth of each group is compared.
A law is backed by scientific evidence which is reproducible while a hypothesis is just a guess that may be confirmed or disproved by experiment.
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The formation of two species from one original species is known as.
Answer:
I would assume it was something like a fusion
IMPORTANT!!!
The town council votes to construct an energy plant on the bank of a large river. It uses river water in its cooling tanks and releases the wastewater back into the river. How might this activity affect the local watershed?
I. The energy plant will likely flood the area during heavy rainfall.
II. The energy plant will likely pollute the water flowing in front of it on the riverbank
III. The energy plant will stop all water flowing through the watershed.
II only
I and III
II and III
I, II, and III
This is correct
II. The energy plant will likely pollute the water flowing in front of it on the riverbank
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consequences of bullying
What makes the pancreas, liver, and gallbladder so important in digestion?.
Answer:
What makes the pancreas, liver, and gallbladder so important in digestion?
The pancreas supplies digestive juice to the small intestine through small tubes called ducts. Liver—The liver produces a digestive juice called bile that helps break down fats and
Answer: the person above me is very smart and is correct!
Explanation:
Did I do this right? If not can some correct them please
Answer:
yes you have done it correct
In the space provided, describe the similarities and differences between the seasonal changes of the oak tree in Florida and the oak tree in Maine make it Conclusions
Science pls
Answer:
FLORIDA
Explanation:
points)
After glycolysis happens in the cytoplasm, where do the pyruvate molecules that
were made from the food go for the next step in the cellular respiration process?
The Mitochondria
The Nucleus
They remain in the cytoplasm
The Golgi Apparatus
Answer:
Mitochondria
Explanation:
Have a nice day
What is the study of compounds
that contain bonds between
carbon atoms?
Answer:
Organic chemistry
Explanation:
Carbon Compunds
Complete the statements by entering the appropriate term in the spaces below. Is the state of maintaining a stable internal environment despite changing external conditions.
Answer:
Homeostasis is the state of maintaining a stable internal environment despite changing external conditions.
Explanation:
Got it right on edge! Good luck <3
Homeostasis is defined as maintaining the internal environment without changing external conditions because the body can regulate its internal environment according to conditions.
What is homeostasis?As it is currently described, homeostasis is a self-regulating process through which biological systems retain stability while adapting to changing environments.
The maintaining of steady blood pressure in the human body by a series of tiny modifications in the normal range of operation of the hormonal, neuromuscular, and cardiovascular systems is an example of homeostasis.
Homeostasis ensures ideal conditions for enzyme functioning and all cell activities throughout the body. It is the preservation of a consistent internal environment in the face of changing internal and external situations.
Therefore to change the internal environment without external conditions, homeostasis is the major process.
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Which type of tissue described in lecture is involved in support, connecting body parts, and cushioning?.
which statement correctly describes events in the space race
A. The soviet union sent the first human into space, and the United States sent the first human to the moon.
B. Germany sent the first human into space, and the United States launched the first artificial satellite.
C. The soviet union launched the first artificial satellite, and the United States sent the first human into space
D. The United States sent the first human into space and sent the first human to the moon
Answer:A
Explanation:
How should I come out to my friends?
Answer:
Trust Your Gut. Don't feel forced to come out by friends or situations
Weigh all the Possibilities
Have a Support System.
Let Go of Expectations.
Identify Peer Pressure.
Think About Privacy.
It's a Lifelong Process.
Explanation:
I HOPE THAT HELPS
Pls help.
Are there any parts of the human body that get oxygen directly from the air and not from the blood?
Are there nuclear reactions going on in our bodies?
Can humans ever directly see a photon?
Answer:
A) Cornea in the eye
B) Yes, there are nuclear reactions constantly occurring in our bodies, but there are very few of them compared to the chemical reactions, and they do not affect our bodies much. All physical objects are made of molecules. A molecule is a series of atoms linked together by chemical (electromagnetic) bonds.
C) Photons are the only things that humans can directly see
Question 7 of 10
How is a scientific theory developed?
A. One scientist proves his hypothesis with an experiment.
B. A single experiment is performed once.
C. An experiment is repeated several times.
O D. Many different experiments are performed and repeated.
TIRMIT
The answer is maybe gonna have to be C because scientists perform lots of experiments to prove their theory
:5 In chipmunks, the dominant allele (H) codes for short-haired fur and the recessive allele (h) codes for long-haired fur. What is the probability that the offspring of a cross between a male chipmunk (Hh) and a female chipmunk (hh) will have either fur type?
Answer:
50% will have long hair!=
Explanation:
When you cross between Hh and hh, two out of four are Hh, which is long hair, and two are hh, which is short hair.
which food chain does occur in the forest ecosystem
Food chain that occurs in the forest ecosystem
EXAMPLECarábao gráss (producer) » grásshopper (primary consumer) » wild rodent (secondary consumer) » viper --> owls » wîldcat » leopard » fungi and bacteria » the nutrients from bacteria will go back again to the » soil for plants (producers) to get. And the cycle/chain repeats again.
What is the process of breaking down rocks to make soil?
A. weathering
B. aerating
C. fertilizing
D. recycling
Answer:
A
If right please make brainleist for others to learn from this answer thanks!
Explanation:
Answer:
A.Weathering.
Explanation:
The process of breaking down rocks to make soil is called Weathering .
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Mountain ranges, subduction zones, and trenches might all result from ____
A. transform boundaries
B. divergent boundaries
C. convergent boundaries
D. equatorial boundaries
Answer:
The answer is Convergent Boundaries
True or false: stars will move and change categories
What four things do all living things need to survive?
Answer:
The answer would be food, water, shelter, and space.
Explanation:
Answer:
They need air, food, water, and shelter.
Explanation:
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2.2 If you are going to plant the following, which minerals/ nutrients will need to be modified and how? (Refer to theme 7 for requirements) (20) Eragrostis curvula, 3.2 Lolium multiflorum, 3.3. Cenchrus ciliaris. 3.4 Medicago sativa
Among the plant species mentioned, only the Medicago sativa species needs soil modification for its planting.
Eragrostis curvulaCultivated in full sun, but tolerates partial shade. Rustic, not developed in terms of soil, it adapts to poor, dry or humid soils.
Lolium multiflorumThis weed can occur at various times in wheat
Cenchrus ciliarisPlanting is usually carried out by seeds, being a manual in general. Sowing can be carried out in pots, furrows or by casting, when carried out in the rainy season.
Medicago sativaFlat areas marked by deep, fertile, well-drained soils, free of ponds and pH between 6.7 are the forage's preferred.
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Draw Conclusions What can you conclude
about two organisms that can mate and pro-
duce fertile offspring?
Answer:
You can conclude that these organisms belong to the same species.
Explanation:
2 come from the same family then they mate and now there are 3 from the same family.
According to complementary base-pairing rules, for every G in the DNA double helix, there must be __________.
Answer: One C
Explanation:
According to the complementary base pairing rules, it’s a 1:1 ratio of A and T and a 1:1 ratio of C and G. For example if there’s 26 adenine, there should be 26 thymine
write any two function of skeleton system
Two functions of the skeleton system are:
It is a support structure for the bodyIt provides protection our internal organsIn the embryo, the early skeletal muscle originates from the _______. In the adult, skeletal muscle is repaired by fusion of _______ with muscle fibers. Fill in the blanks.
The prenatal muscle originates from the myotome. The myotome produces presumed myoblasts that form the satellite cells. Answer: myotome / satellite cells.
How is the skeletal muscle originated and repaired?Myogenesis is the process of skeletal muscle formation during the embryonal stage. Structures derived from the mesodermal produce the firsts muscle fibers of the body, and then other additional fibers.
The myotome is a primitive muscular structure that contains progenitor muscle cells. Embryonary myotome cells produce two types of cells,
presumed myoblasts that constitute a store of cells that can multiplicate through mitosis
properly said myoblasts that can not suffer mitosis
Some of the presumed myoblasts can differentiate into other cells, and some others remain undifferentiated, turning into satellite cells.
This is, progenitor cells in the myotome originate presumed myoblasts, and then these last ones produce satellite cells located in the postnatal skeletal muscle.
Satellite cells are involved in the postnatal process of muscle repair. They suffer successive mitosis producing new myoblasts and more satellite cells.
In the embryo, the early skeletal muscle originates from the myotome. In the adult, skeletal muscle is repaired by fusion of _Satellite cells_ with muscle fibers.You can elarn more about the muscle formation and repair at
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Animals living on the surface of soft-bottomed habitats anywhere in the ocean are known as __________. a. hermatypic b. ahermatypic c. infauna d. epifauna
Answer:
C. infauna
Explanation:
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