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
gtnhenbr [62]
3 years ago
9

When did soft-bodied, multi-celled animals first appear?

Biology
1 answer:
MA_775_DIABLO [31]3 years ago
6 0

Answer: 550 million years ago according to the internet.

Explanation:

You might be interested in
HELP ME OUT PLEASE!
natka813 [3]

omg... that's really hard and i don't know what the answer is.

Explanation:

by the way, thanks for points

5 0
2 years ago
_______ is emotional, mental, and physical fatigue that results in reduced motivation, enthusiasm, and performance, which is ___
igomit [66]

Answer:

Blank 1: Depression, anxiety, or both

Blank 2: Covered or paired

6 0
3 years ago
Read 2 more answers
Consider a gene that exists in two allelic forms in a simple Mendelian dominant/recessive pair. In a large population of randoml
EastWind [94]

Answer: Option a) the frequency of the homozygous dominants will go down, the frequency of the heterozygous genotype will go down, and the frequency of the homozygous recessives will go up

Explanation: Another name for gene frequency is the allele frequency. It is the percentage of any chromosomes in the population that contains that particular gene or allele. It also shows the genetic diversity that can present in a species.

3 0
3 years ago
PLEASE HELP ME!
liraira [26]
1) The process arrow A represents is photosynthesis.

2) Arrow A represents light energy transformation. Light energy from the sun is converted into chemical energy in plants.

3) Photosynthesis is part of a carbon recycling process in the carbon cycle. Plants absorb light energy and convert it to chemical energy. Plants absorb carbon dioxide which is exhaled by humans and animals. Plants then produce oxygen which is absorbed by humans and animals. Animals also eat plants thus passing the carbon compounds along.

I hope this makes sense. Hope this helps! :)
3 0
3 years ago
Which comparisons of Trial A (no immunity) and
VashaNatasha [74]

Answer:

1.

3.

4.

Explanation:

In trial A, people have no immunity so there are more chances of infection and in trial C, only 50% of people have immunity so chances of infection are less, so infection will spread faster in trial A than trial C.

If compared, trial C will have less infected people than trial A because people in trial A has no immunity and people in trial C have 50% of immunity, so only fewer people will get infected even after six point of contact.

As percentage of immune people (trial C) is 50, so there are equal chances of immunity and non-immunity. there are three reasons of infection that include source, susceptible person and transmission. source and susceptible person can be the reason of infection in some non-immune people but the transmission reason can vary. s<em>o, there is probability that three nonimmune people lie under transmission reason and are not coming in contact with infected  people, medical equipment or environment, that causes infection and those three people are not getting infected.</em>

<em>Hence, the correct options are 1, 3 and 4.</em>

5 0
3 years ago
Other questions:
  • Denise was measuring the effect of temperature on the amount of dissolved oxygen that water can hold. She hypothesized that as w
    14·2 answers
  • After our solar system began to form, dust and gas combined into small bodies that formed the planets. What are these small bodi
    10·2 answers
  • New evidence does not change what scientists already believe to be true. True False
    8·2 answers
  • I need help bhadd this is so hard you guys and helpers
    9·2 answers
  • Susan designed an experiment to demonstrate interactions between Earth systems. She filled a jar completely with water and kept
    15·2 answers
  • Dehydration reactions remove two _____
    6·1 answer
  • What is the source of energy for thermoacidophiles archaebacteria?
    11·2 answers
  • HELP! Help me plz!<br><br><br>Look at pic its just one question and I'm too dumb to answer!
    11·1 answer
  • Show me a frayer model using credit for the term
    14·1 answer
  • What is the main cause of acid rain?
    14·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!