What is an ecological niche? the part of the habitat's resources that a species uses a species' unique physical traits that suit it for its habitat the specific type of shelter an animal finds in its habitat the degree of relatedness between two species an organism's role in the food chain of an ecosystem

3. The function of the __ is to reduce friction when the heart contracts. a. myocardium b. epicardium c. fibrous pericardium d. serous pericardium

square After four hours of testing, the results of the experiment showed that the 30 participants' arms were much more red on the arm with the new formula.What conclusion can be made from this experim ent? Answer below. square

What is an effect of an insect carrying pollen to the pistil,the female part of the flower? A. The insect makes nectar to eat. B. The plant becomes more colorful. C. The plant can make seeds. D. The insect becomes stuck.

14. How does a polysaccharide differ from a disaccharide? __

3. What will likely happen to polar bears if they are not able to adapt to climate change in the Arctic? A) They will become extinct. B) They will act more like brown and black bears. C) They will find a colder place to live. D) They will thrive south of the Arctic Circle

EXTENSION square square 2 type of systems that maintain homoostasis capture and use of enorgy for life processes 9. type of organism that makes its own food during photosynthesis 10. the creation of offspring 11. type of organism that consumes other organisms for food 12.process where organisms break down glucose to make ATP 13. single-celled organism Are there living things in your lunch? Imagine you have packed a lunch containing a peanut butter and jelly sandwich, an apple, protrels, and a bottle of milk.Which item(s) In your lunch do you believe are lving?Which Illams do you believe are non-living?Explain your answers with evidence and reasoning. nown 1. contains Instructions for growth and dovelopment 4. made up of more than ons cell 5. Internal and external stimul can trigger a __ 6. another it name for a ferlilized egg 7. study of life 8. maintenance of a relatively stable internal balance 14.change in a population of organisms over time

Check Your Understanding-Question 4 of 5 Which of these are functions of the respiratory system? A. Acts as a barrier to pathogens B. Releases hormones C. Removes carbon dioxide from the body D. Allows for the breathing in of oxygen

5. Race car drivers still have plenty of energy left after a long,hard race because a. their bodies make good use of the oxygen they breathe. b. they get extra sleep before a race. c. they have learned to relax during a race.

5. Certain species of sea stars, corals, and mosses can reproduce asexually by __

Hot Questions

Select the correct answer. Which of the following phrases best explains the role of a habitat? A. provides interactions with other organisms B. provides water C. provides a place to reproduce D. provides a place to live

Which type of membrane protein moves sodium and potassium through the nerve cell membrane? Junction protein Transport protein Receptor protein Channel protein Enzymatic protein Cell recognition protein

Multiple Select Question Select all that apply Choose all that result from contraction of the lateral muscle of the thigh. abduction of the thigh lateral rotation of the thigh extension of the thigh adduction of the thigh medial rotation of the thigh

Match the Process to the Pool Movement Carbon Moves From -To __ Atmosphere __ __ Bioshpere __ __ __ __ __ Process Photosynthesis Respiration Decomposition Fossil Fuel Combustion __ __

The kidney is associated with which system? A. Endocrine system B. Cardiovascular system C. Skeletal system D. Respiratory system E. Nervous system

What is the direct effect of: Decreased ADH Only CO increases Only CO decreases Only BP increases Only BP decreases Both CO and BP increase Both CO and BP decrease

What are the four phases of a typical bacterial growth curve in order? Exponential, Lag, Death Stationary Lag, Exponential, Stationary, Death Death, Lag, Exponentlal, Stationary $Lag,$ Stationary, Death,Exponential

8. Oxygenated blood from the lungs enters the heart at the: a. left ventricle b. right ventricle c. left atrium d. right atrium

Bacteria that grow optimally at pH levels below 5 are classified as: Neutrophiles Alkaliphiles Acidophiles Halophiles

Which group of bacteria can survive and grow at temperatures below $15^{\circ }C$ Thermophiles Psychrophiles Mesophiles Hyperthermophiles