3. Heart (The heart pumps oxygen thro our entire body, continuously)
4. Blood Vessels (In humans, nutrients are carried thro blood vessels)
I hope that helps!
Answer:
coral is not a rock or a plant it is an animal
Explanation:
a single coral is made up of many tiny creatures that are called polyps, together they make up a coral.
A cell in prophase I of meiosis has twice as much DNA as each of the daughter cells following cytokinesis of meiosis II.
Meiosis is reduction cell division through which gametes (eggs or sperm cells) are formed. Reduction division means that four haploid cells (n) are produced from a single diploid cell (2n). The number of chromosomes is reduced by half during meiosis but during fertilization are returned to the full numer, when the two gametes fuse.
Answer:
they have increased
Explanation:
What happens with pollution is that every day are tons of CO2 liberated to the atmosphere. those tons of pollution supose to be regulated by the states, but that is not what actually happens in third world countries there is an almost uncontrolable increase of CO2 liberation at the atmosphere. In the first world countries it's more controlled but still haven't decreased the CO2 levels released into the atmosphere.
The CNN (an spanish daily paper) said: the CO2 levels are the highest in the last 3 million years, in a new released the past april.