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
Murrr4er [49]
4 years ago
3

Write a paragraph describing how Earth would be different if photosynthetic plants had not evolved.

Biology
2 answers:
mariarad [96]4 years ago
8 0
<span>The world would be very different if green plants had not evolved because the world is based on green plants. They provide food for almost all organisms: plants, animals, and microorganisms. They release oxygen into the atmosphere. They provide people with products including building materials, medicines, fuels, and fibers. They form fossil fuels, which are used by people all over the world. None of this would exist without green plants. The world would be much less colorful and diverse as well, because we would not have the great variety of plants, including trees and flowers.</span>
quester [9]4 years ago
3 0
The world would be very different in terms that there would not be many animals or there would be different animals. The reason for this is... if there are no photosynthetic plants the animals would have barely anything to eat so if these photosynthetic were not here humans might not even be alive due to lack of food. The main creatures would live in the sea to eat algae or similar.<span />
You might be interested in
Cloning<br> 1. Why does the human body reject transplanted organs from pigs?
brilliants [131]

Answer:

There is sugar on the pig's surface that humans don't have.

Explanation:

"This rapid rejection occurs when human antibodies attach to sugar molecules on the surface of the transplanted pig organ's cells."

4 0
3 years ago
I weigh around 126 pounds, and my height is 5''4. I'm almost 13. Am I overweight?
kap26 [50]
Your BMI (body mass index) is 21.6, which is a normal BMI. So, you are NOT overweight. 
8 0
3 years ago
Read 2 more answers
Explain how fertilization occurs
alex41 [277]
<span>I'm assuming this in plants.

Brief-ish answer:

"Fertilization in plants occurs when pollen grains are transported from anthers to stigma. When ripe pollen from an anther catches on the stigma of the same kind of flower, each pollen grain sends out a small thread-like tube."

Here's a fuller answer:

"</span>Fertilization occurs after pollination, when pollen grains land on the stigma of a flower of the same species. During this time, a series of events take place leading to the formation of seeds. A pollen grain on the stigma develops a tiny tube that runs down the style of the ovary. The pollen tube contains a male gamete which meets the female gamete in the ovule. Fertilization occurs when the two gametes combine and their chromosomes join. The resulting product is a normal complement of chromosomes, with some from either parent flower. The fertilized ovule forms a seed, which consists of a food reservoir and an embryo that later develops into a new plant. In gymnosperms (conifers) male gametes are enclosed in pollen grains and are transmitted by wind or insects to the female reproductive organs. Fertilization in angiosperms (flowering plants) occurs when insects or other animals transport the pollen to the female reproductive organ (pistil).<span>
</span><span>Fertilization is the fusion of gametes to launch the development of a new individual organism. In animals, the process entails the combination of ovum with a sperm, leading to the development of an embryo. Fertilization in plants occurs when haploid gametes meet to create a diploid zygote, which eventually forms an embryo.</span><span>"

source: </span>https://www.reference.com/science/plant-fertilization-occur-ccf48c80e72fc410
5 0
3 years ago
Which representation of data visualizes potential relationships between variables?(1 point) a table a graph a chart a list
Georgia [21]

Answer:

A chart

Explanation:

A database management system (DBMS) can be defined as a collection of software applications that typically enables computer users to create, store, modify, retrieve and manage data or informations in a database. Generally, it allows computer users to efficiently retrieve and manage their data with an appropriate level of security.

A chart is a representation of data which visualizes potential relationships between variables. Some examples include pie chart, bar chart, etc.

A bar graph also known as a bar chart can be defined as the graphical representation of data (informations) by using vertical columns or rectangular bars. When a data set is observed, a bar chart can be used to graphically represent or record the total or overall amount of information contained therein. Generally, bar charts are used for the comparison of informations obtained from a data collection by representing each value (information) with rectangular bars respectively.

7 0
3 years ago
Read 2 more answers
Some of the interactions that occur between living or non-living things in your community.
UkoKoshka [18]

Answer:humans interact with plastic toys

Explanation:

Humans are living and plastic toys r not

7 0
4 years ago
Other questions:
  • In the short-term response to hemorrhage, ________ occurs.
    7·1 answer
  • What is the atom structure?
    15·1 answer
  • Consider the flow of 'high-energy' electrons as they move from glucose through cellular respiration. Which of the following corr
    6·1 answer
  • true or false? Cytokinesis is the division of the cytoplasm, whereas mitosis is the division of the nucleus.
    8·1 answer
  • Please Help!!! Plants make energy. Some of this energy they use to perform the necessary functions of living. What do they do to
    13·2 answers
  • What is a lightyear?
    12·2 answers
  • What is a karyotype and how do they help scientists
    12·2 answers
  • AQUATICS SCIENCE please help
    7·1 answer
  • Which molecules make up carbohydrates?
    13·1 answer
  • Under which set of circumstances would the diameter of peripheral blood vessels be the greatest?
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!