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
nasty-shy [4]
4 years ago
6

Which of the following are true regarding geologic periods?

Biology
1 answer:
Maslowich4 years ago
3 0
II and III only. The Cambrian Period is the first geological time period of the Paleozoic Era. And the longest unit in geological time is the supereon.
You might be interested in
In humans, a type of blindness is due to a dominant allele; normal vision is the result of a recessive allele. Migraine headache
yan [13]

Answer:

Yes.

Probability of such child = 1/2 or 50%

Explanation:

According to the question, below are the genotypes and phenotypes possibilities:

aa = normal vision & no headache

Aa = normal vision & no headache

AA = blindness & headache

                                                                      Male                       Female

                                                                        Aa                            aa

Possible genotypes of progeny:            Aa        Aa           aa         aa

So it is clear that out of the 4 probable children, 2 with 'genotype aa' will have normal vision & no headache.

Mathematical expression is as under:

2/4 = 1/2 that means 50% progeny.

5 0
3 years ago
Which organism has a nerve net that allows it to respond to a stimulus in a coordinated way​
posledela

Answer:

HYDRA

Explanation:

The nerve cells are scattered in each layer of the body wall and these neurons send information from sensory organs. Based on the given choices above, the organism that has a nerve net that allows it to respond to a stimulus in a coordinated way is the HYDRA.

8 0
4 years ago
Read 2 more answers
What are genes composed of?<br> O offspring<br> O DNA<br> O cells<br> O traits
Crank

Answer: DNA (happy to help)

Explanation:

6 0
3 years ago
Interesting Facts (don't tell me definition cuz I already know it) about xylem, at least one
horsena [70]

Answer:

Its cells have thick, hard walls.

Explanation:

7 0
3 years ago
Read 2 more answers
How does an increase in a deer population that feeds on plants affect the animals and plants in a certain environment
Zolol [24]
Answer down below:

If a deer population starts eating all the plants in a specific area, the plants, of course will kill the plants. But also, once all the plants will run out, all the organisms and deer will eventually die out.
4 0
3 years ago
Other questions:
  • Why did a fish die after putting it into fresh water after being in salt water?
    15·1 answer
  • State one rease why an individual's pulse rate increased during exercise
    12·2 answers
  • Suppose that a dominant allele (P) codes for a polka-dot tail and a recessive allele (p) codes for a solid colored tail. In addi
    12·1 answer
  • Which of the following is the best demonstration of the fundamental attribution error?
    8·2 answers
  • A nectar-eating bird has a slightly more curved beak than average for its species. This allows the bird to more easily access ne
    14·1 answer
  • What type of response involves an organism moving to or from the earth? Geotropism, internal response, phototropism fight or fli
    13·2 answers
  • Part 3
    10·1 answer
  • Cells are ____ for their function
    11·2 answers
  • 1 A wound that is deeper than wide, can cause damage to internal organs describes a(n)
    8·2 answers
  • In a quiz
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!