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
Lelu [443]
3 years ago
9

____ is the species that plays an especially important role in its community so that major changes in its numbers affect the pop

ulation of many other species in the community
A. Prey
B none of the above
c predator
D keystone

please answer quickly and be 100% sure its correct
Biology
1 answer:
ipn [44]3 years ago
5 0

Answer:

D. Keystone

Explanation:

Think of it from a bridge building perspective the keystone in an arc bridge was the tip or the highest point if that stone was pulled out all of the other stones would fall out with it, same goes for ecosystems if that one species declines dramatically or goes extinct then the rest of the population will proceed to do so as well

You might be interested in
Identify and describe the various satellites the orbit in our solar system.
Hitman42 [59]

Answer:

Explanation:

The seven largest natural satellites in the solar system (over 2,500 km in diameter) are the four Jovian Galilean moons - Ganymede, Callisto, Io, and Europa - Saturn's moon Titan, Earth's own Moon, and the satellite captured natural of Neptune Triton.

They move around a larger body. They revolve around these bodies because of their gravitational pull. The orbits that they describe when turning on these bodies can be regular or irregular.

Natural satellites of planets in the Solar System

Mercury → 0.

Venus → 0.

Earth → 1.

Mars → 2.

Jupiter → 79.

Saturn → 82.

Uranus → 27.

Neptune → 14.

6 0
3 years ago
What factors have caused a rapid increase in human population?
o-na [289]
I'd say one was what girls where now. So, they think its okay to have sex. Causing more and more young women and teens to have a pregnancy, and because of insurance the more kids you have, the more money you get from the state.  
7 0
3 years ago
The number of individuals that a particular habitat can support with no degradation of that habitat is called _____.
lana [24]

Answer:

carrying capacity (carrying capacity is the total population size that a particular environment can comfortably support with little increase or decrease over a relatively long period of time) given the food, habitat, water e.t.c. that is available in the environment.

4 0
3 years ago
explain how complete dominance, co dominance, incomplete dominance, and sex linked traits are inherited and expressed differentl
dlinn [17]
<span> COMPLETE DOMINANCE:
</span>
<span>Mendel concluded that some alleles are dominant and others are recessive. When one dominant allele is present, it's enough to make the recessive allele unexpressed (this is what happens in heterozygous individuals). In other words, it 'hides' or masks the recessive allele.

CO-DOMINANCE:

-a condition in which both alleles are dominant.
</span>
There are alleles that have the capacity of dominating at the same time, and when an organism is heterozygotic, both alleles are expressed.
For example, a white chicken(WW) crossed with a black chicken (BB):  100% of the offspring being WB. With this genotype, they have black feathers and white feathers.
It's not a blend of colors, but a case where both are expressing.

INCOMPLETE DOMINANCE:
-a condition with none of the alleles is dominant or recessive, so the traits blend in the phenotype.

Some alleles are not completely dominant, and when that's the case the phenotype of a heterozygous organism will be a mix between the phenotypes of its homozygous parents.

For example:
plant 1: RR -red
plant 2: rr- white

By crossing this plants we will obtain 100%  of the offspring with a color mix: pink.(genotype: Rr)
Red and white are not completely dominating so it results in a blend of colors.

SEX LINKED TRAITS

Sex chromosomes contain genes that determine the sex of a person. Two X chromosomes result in a female and one X plus a Y result in a male.

In those chromosomes, there are genes specific for each gender, and in those chromosomes, there are genes that code for certain traits- the sex-linked traits.
These traits will be inherited according to the sex chromosomes they receive from their parents.









5 0
3 years ago
Several reservoirs hold water during the water cycle.
Viefleur [7K]

Answer:

d

Explanation:

reservoirs are places were water are held for a lond period of time. Do a lake or ocean is a place where water is held for a long period of time.

5 0
3 years ago
Read 2 more answers
Other questions:
  • What do plant cells take in to make their own food
    15·1 answer
  • Name the type of allele. A_______allele exhibits its phenotype when it is present on both the chromosomes.
    11·2 answers
  • Which hormone works directly in the intestine to increase plasma calcium levels?
    5·1 answer
  • Even though part of it is nonliving, ____ functions to protect the living parts of the stem
    10·1 answer
  • An element's atomic number is 18. How many protons would an atom of this element have? _______ protons
    6·2 answers
  • Which isotope has a relatively short half-life?
    7·1 answer
  • What area of the brain associated with attention and concentration is completely myelinated by the time a child is five years of
    8·1 answer
  • Which pure form of carbon is used in pencil lead? charcoal coal fullerene graphite
    7·1 answer
  • How are Nonvascular and Vascular seedless plants alike? How are they different?
    15·2 answers
  • GIVING BRAINLEST PLEASE HELP
    14·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!