1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
raketka [301]
4 years ago
9

Food chains are usually short mainly because A) only a single species of herbivore feeds on each plant species. B) local extinct

ion of a species causes the extinction of the other species in its food chain. C) most of the energy in a trophic level is lost as it passes to the next higher level. D) predator species are less diverse and less abundant than prey species. E) most producers are inedible.
Biology
2 answers:
Sloan [31]4 years ago
5 0
The answer is C) because only about 10% of energy is transferred through each tropic level. If food chains were long, the top predators would receive barely any energy and would die. They would go extinct which leaves only short food chains with usually 5 trophic levels at the most.
kodGreya [7K]4 years ago
3 0

Answer:a

Explanation:because the other ones don’t make sense

You might be interested in
HELP i need to create a story about cells and their functions the organelles are Cell membrane
Katen [24]

Answer:

More than 8.7 million species are living on the planet. Every single species is composed of a cell and it includes both single-celled and multicellular organisms.

The cells provide shape, structure and carries out different types of functions to keep the entire system active. The cell contains different functional structures which are collectively called Organelles, and they are involved in various cellular functions.

Also Read: Difference between organ and organelle

Let us learn more in detail about the different types and functions of Cell Organelles.

Table of Contents

What are Cell Organelles?

List of Cell Organelles and their Functions

Plasma Membrane

Cytoplasm

Nucleus

Endoplasmic Reticulum

Mitochondria

Plastids

Ribosomes

Golgi Apparatus

Microbodies

Cytoskeleton

Cilia and Flagella

Centrosome and Centrioles

Vacuoles

A Brief Summary on Cell Organelles

5 0
3 years ago
1.This method of reforestation is done by natural means with the aid of the wind,birds,rodents and running water which scatters
ANEK [815]

Answer:

  1. T. Natural Reseeding.
  2. D. Species Diversity
  3. A. Ecosystem Diversity.

Explanation:

Natural reseeding uses natural elements and actors to plant the seeds of trees. These elements and actors include water, wind, birds, rodents and other actors capable of scattering seed.

Species diversity is what defines the differentiation between the different species in an ecosystem and Ecosystem diversity relates to how biological communities/ ecosystems can be different from each other based on the organisms and food chains available in each.

8 0
3 years ago
In hamsters, we can examine the genes for coat color and eye color which are linked:B = brown coat, b = white coat, G = green ey
Inessa [10]

Answer:

10.2 cM

Explanation:

Given,

pure breeding parent 1 : BBgg = brown coat and pink eyes

pure breeding parent 2 : bbGG = white coat and green eyes

BBGG X bbgg = F1 = BbGg ( All are brown with green eyes )

When F1 progeny is test crossed with white coat and pink eyes hamster:

BbGg X BbGg = F2 =

brown, pink eyes = 99 = parental

white, green eyes = 103 = parental

brown, green eyes = 12 = recombinant

white, pink eyes = 11 = recombinant

Recombination frequency =

(total number of recombinants / total progeny ) * 100

= [( 11 + 12 ) / ( 99 + 103 + 12 + 11 )] * 100 = (23/225)*100 = 0.102 * 100 = 10.2 %

1 % recombination frequency = 1 cM distance between genes

Hence, the distance between B and G gene is 10.2 cM

4 0
4 years ago
What structure keeps harmful chemicals out of animal cells?
Charra [1.4K]

Cell membrane protects animals cells from harmful chemicals.

Explanation:

The cell membrane is a tough covering composed of the phospholipids and proteins and forms a bilayer around the cells. This acts as a semi-permeable membrane and controls the transport of ions, organic molecules and solutes to and from the cell through selective permeability.

The hydrophilic and hydrophobic properties and the corresponding polarity of the cell membrane and ionization status of the chemicals prevent the entry of harmful substances into the cell. The cell membrane functions as a barrier system and prevents the flow.

4 0
3 years ago
How does bacteria without a nucleus reproduce. PLZ HURRY!!!!
Lostsunrise [7]
Prokaryotes: Organisms whose cells lack a nucleus and therefore have DNA floating loosely in the liquid center of the cell. Prokaryotes divide, and thus reproduce, by simple mitosis.
3 0
3 years ago
Other questions:
  • All of the following are ways we depend on the Sun, EXCEPT:
    15·1 answer
  • A woman with blue eyes (bb) and a man with brown eyes (bb) has a child. what is the percentage change that the child will have b
    12·2 answers
  • Is a T cell a white blood cell
    11·2 answers
  • What type of energy is created by breaking the bonds ?
    14·2 answers
  • Alleles are alternate versions of _____ gene(s) that have ____ nucleotide sequences. A. the same; completely different B. the sa
    14·2 answers
  • The Scientific Metho
    6·1 answer
  • Mapa conceptual de las celulas
    14·1 answer
  • Analyze the feedback mechanisms that maintain homeostasis, and what happens when these systems do not function appropriately
    11·1 answer
  • A client with myasthenia gravis improves and is discharged from the hospital. The discharge medications include pyridostigmine b
    8·1 answer
  • A population of animals is at Hardy-Weinberg equilibrium. The frequency of the dominant allele Q is 0.70 and the frequency of th
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!