What might be limiting resource for sharks in their ecosystem

Answer:

Sharks keep ocean ecosystems in balance

Sharks limit the abundance of their prey, which then affects the prey of those animals, and so on throughout the food web. Because sharks directly or indirectly affect all levels of the food web, they help to maintain structure in healthy ocean ecosystems. HOPE THIS HELPS!!!!!!!!

Explanation:

You are traveling 60 mi/hr. You have traveled for 3 hours, how far have you gone?

Which answer is the best representation for the shaded region?

Which of the following is a type of adaptation that animals can have?

Physical characteristics
Behaviors
Life cycle differences
1. I and II
2. I and III
3. II and III
4. I, II, and III

what does Risk Management mean

What are 3 ideas a family has on individuals?​

Which of the following best describes the use of population models in biology? (SC.7.N.3.1
O They are generally easy to construct.
O They can represent reality precisely.
They are used when no observations have been made.
O They can help predict outcomes
(25 points)

A scientist does an experiment in which she removes the offspring of rats from their mother at birth and has her genetics students feed and rear the offspring. Assuming that the students do not lick and groom the baby rats as the mother rats normally do, what long-term behavioral and epigenetic effects would you expect to see in the rats when they grow up

I'll give Brainlyest if I can just please hurry

Which of the following measures would improve energy
efficiency/conserve energy?
1. Increasing fuel economy standards on cars
2. Purchasing larger in-home water heaters
3. Unpluging electronics when not in use
4. Eating more locally sourced food
5. Removing tax incentives on home-solar purchases
O i, ii, iii, iv, and v
O i and iv only
O i, iii, and iv
O i, ii, and iii

What do all animals, including vertebrates and invertebrates, have in common?

Question 1 options:

They have backbones, internal skeletons, and muscles.


They are heterotrophs that must get their food from plants or other animals.


They have lungs or gills for breathing.


They are endothermic (warm-blooded).

Question 2 (1 point)
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All animals share several common characteristics. Which is a characteristic shared by all animals?

Question 2 options:

endoskeletons and muscles


sensory organs and backbones


multi-cellular bodies


exothermic blood systems

Question 3 (1 point)
Sam’s teacher asked him to make observations about animals at the zoo. Sam went to the zoo and filled in these two charts that the teacher gave him.



What is the main difference between the species in Group 1 and Group 2?

Question 3 options:

Group 1 has small organisms, Group 2 has large organisms.


Group 1 are endothermic, Group 2 are exothermic.


Group 1 are vertebrates, Group 2 are invertebrates.


Group 1 has exoskeletons, Group 2 has soft bodies.

Question 4 (1 point)
Which of the following is a characteristic of all mammals?
Question 4 options:

lungs


hair


tail


both 1 and 2

Question 5 (1 point)
What is the benefit of an arthropod’s exoskeleton.

Question 5 options:

It allows arthropods to breathe.


It protects and supports the arthropod’s body.


It allows the arthropod to get food.


It allows the arthropod to see far distances.

Question 6 (1 point)
What do arthropods and segmented worms have in common?

Question 6 options:

They both have segmented bodies during some stage of their life.


They both have hard outer shells that are unmovable.


They both have bones and vertebrae.


They both lack any sense organs.

Question 7 (1 point)
To which group of invertebrates do cephalopods, such as squids, belong?



Question 7 options:

Arthropods


Echinoderms


Cnidarians


Mollusks

Question 8 (1 point)
Sweat glands, fur, and feathers are found on an endotherm.

Question 8 options:

True


False

Question 9 (1 point)
Vertebrates and invertebrates differ in the presence of a backbone. Another characteristic that distinguishes most vertebrates from many invertebrates, is that vertebrates —

Question 9 options:

have a relatively well-developed brain and circulatory system.


have long tube-like bodies that are divided into segments.


take in oxygen from their skins rather than from an inside organ.


have hard outer covering called exoskeletons.

Question 10 (1 point)
During chilly days, you might notice lizards lying (“basking”) in sunny areas. Why do lizards bask in the sun?

Question 10 options:

Ectothemic animals are lazy and the sun puts them to sleep.


Ectothermic animals need to get tanned by the sun's rays for camouflage.


Ectothermic animals use the suns rays to help them hide from enemies.


Ectothermic animals need the warmth from the sun to allow them to move around and hunt for food.

Question 11 (1 point)
Which group of animals could be correctly classified as endothermic?



Question 11 options:

robin, squirrels, mice


bears, snakes, wolves


frogs, lizards, snakes


groundhogs, hawks, crab

Question 12 (1 point)


Using the table, which statement is true?

Question 12 options:

Organisms in both Groups A and B have similar mechanisms for controlling their internal temperatures.


Organisms in Group A have fewer mechanisms for controlling their internal temperatures than those in Group B.


Organisms in both Group A and B usually coexist peacefully.


Organisms in both Group A and B are extinct species.

Question 13 (1 point)
How do “warm-blooded” animals cool off?

Question 13 options:

They convert the food they eat into cool energy.


They sweat or pant to lose heat by water evaporation.


They move to colder climates.


They move around a lot to stimulate their circulation.

Question 14 (1 point)
An animal takes on the temperature of their surroundings so they don't have to use food energy to keep warm. This means they don’t have to eat as often. They are considered an __?

Question 14 options:

Endotherm


Ectotherm

Question 15 (1 point)
Which of these factors is used to classify the different organisms on Earth into Kingdoms (such as protists, fungi, plant, animals, and bacteria) ?

I Number of cells in the organism

II How the organism obtains energy

Question 15 options:

I only


II only


I and II

Question 16 (1 point)
It's sunny in New York, but it is cool. Where would you expect to find this lizard during the day?



Question 16 options:

Under a rock


In a damp stream bed


Basking in a sunny spot


In a hole in the ground

Which of the following statements is not part of the cell theory? A) All living cells come frondivision of preexisting cells. B) All cells are surrounded by a cell wall. C). A cell is the smallest unit of life, individually alive even as part of a multicelled organism.​

The temperate grasslands biome includes regions of several continents. What do all of the regions have in common? A. the same species of grazing animals B. the same species of grasses C. the same seasonal patterns of temperature and precipitation D. the same amount of land that is covered in grasses

This category of endangerment occurs when organisms are still abundant in its natural range, but declining in numbers:

A. Endangered species
B. Threatened species
C. Invasive species
D. Endemic species
E. Red list species

List 4 significant problems with nuclear power plants....,,,,,?

Calculate the Simpson’s diversity index using the information below.

A 3 column table with 3 rows. Column 1 is labeled Species with entries American bullfrog, Pool frog, Common toad. Column 2 is labeled Pond 1 with entries 300, 335, 365. Column 3 is labeled Pond 2 with entries 20, 49, 931.

What is the Simpson’s diversity index for pond 1? Round to the hundredths place.

what is unhealthy lifestyle choice​

A scientist wants to travel to the center of the Milky Way galaxy. It is 26,400 light-years from Earth. Would the
scientist ever reach his destination? Explain your answer.

help i don’t know the answer

What type of invertebrate are robber crabs

Preparing Informative Presentations

There are a variety of reasons a person presents a speech. Perhaps the most common reason is to present timely or useful information to an audience.

Such speeches are called expository speeches, and they rely on the effective transfer of information to listeners. An expository speech could be a definition speech, which explains an object, person, or event. It could also be a demonstration speech, which explains to the audience how to complete a process or task. A successful informative presentation depends on a few key steps that will help you prepare, inform, engage, and educate.



Based on the tips in the article, come up with a topic of your own that would make an interesting demonstration speech?

Jack covers his ears when he hears a loud sound. Which is correct?

Determine the value of the charge of an electron

HELP. This is due in a bit. Giving Brainliest!!

Help pleasee | A damselfly nymph sheds its skin several times, as it grows into an adult. Which statement explains why it does this? No links!!!
A. It is a mammal.
B. It is an invertebrate.
C. It goes through complete metamorphosis.
D. It goes through incomplete metamorphosis.

Jaguars are a keystone species in the Amazon. Describe how they can be so essential to the ecosystem despite
being significantly less abundant than many other species.

You are concerned with surveying the protozoa in the arboretum soil. While most commonly thought to live exclusively in aquatic environments, protozoa can play an important role in the nutrient cycling that takes place in soil. In addition, protozoa can help maintain the proper balance of bacterial populations within soil, as bacteria are a primary source of food for protozoa. Protozoa are extremely diverse. However, there are three characteristics common to all organisms called protozoa. What are these three characteristics

In the image below, where are the carbon-containing gases resulting from combustion most likely to end up?
Atmosphere
Cryosphere
Geosphere
Hydrosphere

natural selection vs artificial​

Recall in class the example of incorporating heavy or light nitrogen labels into DNA to investigate how DNA is replicated. Imagine if, instead of labeling DNA, the experiment used heavy labeled RNA bases. What would be the outcome if you examined the DNA strands after completion of DNA replication in the presence of heavy labeled RNA bases?

What is the name of the process that results in a karyotype like the one pictured?



O A. Nondisjunction
O B. Crossing over
O C. Gene mutation
O D. Mitosis


HELP SAMA PLZZ